Vent plug



INVENTOR ATTORNEYS CURTIS D. FOSS July 7, 1953 c. D. FOSS .VENT PLUG Filed March 20, 1950 FIG. 2.

FIG.

Patented July 7, 1953 2,644,609 VENT PLIJ'G Curtis D. Foss, Bell, Calif.

Application March 20, 1950, Serial No. 150,615

1 This invention has to do plugs.

An object of the invention is to provide a novel, simple, self -draining vent plug.

generally with vent Another object is to provide a self-draining vent plug of resilient material which can be readily mounted in a hole in the wallof a chamber, vessel, or the like.

A further object is to provide a vent plug which is particularly designed to be mounted in a hole in a vertically extending wall in such a manner 2 Claims. (Cl. 22044) 20 of greater lateral extent than the neck, thereby providing shoulder 21 for engagement with the outer surface 14 of the wall [2. In this con- I nection it may be pointed out that theneck I8 that the plug will be self-draining from one side of the wall to the other.

A still further object is to provide a vent plug which is particularly designed to prevent the entrance of liquid into a chamber or the like having a wall in which the vent plug is installed.

Another object is to provide a vent plug which can be readily molded of rubber or rubber-like material and which is easy to install.

These and other objects will be apparent from the drawing and the following description thereof.

Referring to the drawing:

Fig. 1 is an elevational view of a vent plug embodying the invention shown mounted in a wall, fragmentarily illustrated;

Fig. 2 is a front elevational view of the plug of Fig. 1; I

Fig. 3 is a plan view of the plug of Fig. 1;

Fig. 4 is an enlarged, central sectional elevation of the plug; and L Fig. 5 is a bottom plan view to the scale of Fig. 4.

More particularly describing the invention, reference numeral H generally indicates a vent plug embodying the invention which is shown mounted in a wall [2. The wall may be con-' sidered as constituting part of a casing of a chamber or it may conceivably be a lid or cover of a railway car journal box. In Fig. 1, numeral It indicates the inside surface of the wall and 14, the outer surface. v

The plug ll comprises a body l5 which is preferably formed of resilient material, such as synthetic rubber, for example, and in the drawing the body is shown as plate-like, being substantially rectangular and somewhat more elongated in a vertical direction than laterally. The body 7 provides a wall-engaging flat surface It adapted to lie against the surface I3 of the wall 12 when the plug is installed. Projecting from the body is a neck 18 which preferably extends substantially at right angles from the surface IS. The neck 18 terminates in a head or enlarged end is adapted to be positioned in and extend through a hole or bore 23 in the wall.

The body 15 is provided with an opening or recess 25 which includes a cut-out portion 26 in the surface 56 and a recessed or cut-out portion 21 in the upper end wall 28 of the body. Leading from this opening is a downwardly inclined passage 29 which terminates at the lower end of the head 20.

In the operation of the device it will be apparent that the head 20, being of resilient material, may be forced through the opening 23 in the wall so that the neck It lies within the opening and the head 20 beyond the opening to engage the outer surface of the wall. The plug will then be effective to vent fluid from the interior of the chamber of which the wall [2 may be considered as forming a part to the exterior of the wall. It will also be apparent that, due to the configuration of the body and the inclined passage 29, the plug will be self-draining and, any

"liquid which may accidentally be splashed upon the head 20 will not enter the vent plug to any .great degree.

Although the invention has been particularly shown and described, it is contemplated that various changes and modifications may be made wall havinga hole therein, a vent plug comprising a a body presenting a fiat wall-engaging surface neck projecting from said body beyond said surface substantially perpendicularly thereto and through the hole in the wall, and a head on said neck projecting laterally beyond the neck and engaging the other side of said wall, said plug having anjinclined passage extending from the lower portion of said head upwardly through the interior of said neck and said body to the cavity therein.

2. In combination with a substantiallyvertical wall having a hole therethrough, a vent plug of resilient material comprising a body presenting a flat wall-engaging surface disposed against one side of the wall, a neck projecting from said body beyond said surface substantially at right angles pasage therethrough terminating in an opening 6 2,248,264

at the upper end of said body and in an opening 2,390,861 at the lower portion of said head.

CURTIS D. FOSS.

Number References Cited in. the file of this patent 10 5 UNITED STATES PATENTS Number I Name Date I 670,794 Lott Mar. 26, 1901 Name Date Hanson Feb. 22, 1921 Goguen et al. Nov. 28, 1939 Takiguehi Apr. 9, 1940 Woodbridge 1 July 8,1941 Younkins Dec. 11, 1945 FOREIGN PATENTS Country Date Denmark Apr. 12, 1937 

